g = 3t² - 5t + 6\np = -8t² + 7t - 9\ng + p = \nyour answer should be a polynomial in standard form.

Explanation:

Step1: Substitute the expressions for (G) and (P)

(G + P=(3t^{2}-5t + 6)+(-8t^{2}+7t - 9))

Step2: Remove the parentheses

(3t^{2}-5t + 6-8t^{2}+7t - 9)

Step3: Combine like - terms

For the (t^{2}) terms: (3t^{2}-8t^{2}=(3 - 8)t^{2}=-5t^{2}) For the (t) terms: (-5t+7t=(-5 + 7)t = 2t) For the constant terms: (6-9=-3)

Answer:

(-5t^{2}+2t - 3)